v3.25.4
Financial Instruments - Fair Values on Recurring Basis (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Debt Securities, Available-for-sale      
Cash equivalents and marketable securities $ 45,800    
Equity Securities, FV-NI, Gain (Loss)      
Equity securities, unrealized gain (loss) 1,200 $ (1,300) $ 1,000
Recurring      
Schedule of Investments [Line Items]      
Cash and time deposits 16,145 17,055  
Debt Securities, Available-for-sale      
Gross unrealized gains 66 6  
Gross unrealized losses (33) (121)  
Cash, Cash Equivalents, and Marketable Securities      
Cash, cash equivalents and marketable securities, amortized cost 122,605 101,532  
Cash, cash equivalents and marketable securities 126,325 104,735  
Less: Restricted cash, cash equivalents, and marketable securities (3,296) (3,533)  
Total cash, cash equivalents, and marketable securities 123,029 101,202  
Recurring | Level 1:      
Schedule of Investments [Line Items]      
Equity securities 3,687 3,318  
Recurring | Level 1: | Money market funds      
Schedule of Investments [Line Items]      
Money market funds 29,777 28,282  
Recurring | Level 2: | U.S. government and agency securities      
Debt Securities, Available-for-sale      
Fixed income securities, amortized cost 5,231 3,452  
Gross unrealized gains 8 1  
Gross unrealized losses (17) (52)  
Cash equivalents and marketable securities 5,222 3,401  
Recurring | Level 2: | Corporate debt securities      
Debt Securities, Available-for-sale      
Fixed income securities, amortized cost 69,542 50,959  
Gross unrealized gains 50 3  
Gross unrealized losses (7) (50)  
Cash equivalents and marketable securities 69,585 50,912  
Recurring | Level 2: | Asset-backed securities      
Debt Securities, Available-for-sale      
Fixed income securities, amortized cost 1,781 1,539  
Gross unrealized gains 8 2  
Gross unrealized losses (9) (18)  
Cash equivalents and marketable securities 1,780 1,523  
Recurring | Level 2: | Other financial instruments      
Debt Securities, Available-for-sale      
Fixed income securities, amortized cost 129 245  
Gross unrealized gains 0 0  
Gross unrealized losses 0 (1)  
Cash equivalents and marketable securities $ 129 $ 244